Paul
Posted a lot
Posts: 1,907
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Aug 16, 2021 16:32:33 GMT
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...of course this happens just in time for the Gathering.
Noticed the other day at cold idle an occasional miss...put it down to lack of use and the cold/wet weather.
Did an oil change today and it's gotten worse - to the point where it's undrivable. Constant hunting at idle, or just stalling.
Distributor Cap / leads seem fine, no obvious split pipes anywhere...thoughts? Windsor 302 small block V8.
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Paul
Posted a lot
Posts: 1,907
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Aug 16, 2021 16:48:48 GMT
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Going to clean out the IAC and see if that helps...interwebs seem to suggest that's a common fault and all the symptoms fit.
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mk2cossie
Club Retro Rides Member
Posts: 2,948 
Club RR Member Number: 77
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Aug 16, 2021 16:54:44 GMT
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I was going to suggest cleaning out the idle stabilisation valve and make sure it works, and check for any air leaks with it running and careful use of WD40 to see if it improves/worsens the idle any where it is squirted  |
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Aug 17, 2021 13:39:23 GMT
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As above especially for air leaks, I had a similar vintage EEIV efi SIerra which did the same when a breather pipe dropped off, also give all the connectors to the various sensors a wiggle with it running to see if any have any effect.
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Last Edit: Aug 17, 2021 13:49:32 GMT by kevins
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Paul
Posted a lot
Posts: 1,907
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Aug 17, 2021 16:55:47 GMT
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Cheers folks...the AIC valve was pretty coked up. A proper dousing in carb cleaner made things 90% better. Took her for a little jaunt and all seems well again.
Probably didn't help that it's been wet and cold, and I've only had her started to idle on the drive for aaages whilst I checked a stereo feedback loop.
RRG is agogo again 😊
Mind you, it's only Tuesday 😂
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Paul
Posted a lot
Posts: 1,907
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And now it's Wednesday, and the problem is as bad as ever. Balls.
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Paul
Posted a lot
Posts: 1,907
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Well that was a bit embarrassing but, like the good RR'er I am, I'll own my mistakes.
Turns out not 1 but 2 HT leads weren't snuggly refitted after I was playing with my spark plugs the other week. They go in at a jaunty angle and I hadn't given them the final bit of oomph they required.
Until tomorrow...
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Aug 18, 2021 13:15:31 GMT
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At least it was simple.
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mk2cossie
Club Retro Rides Member
Posts: 2,948
Club RR Member Number: 77
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Aug 18, 2021 19:51:42 GMT
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Maybe even treat it to some of that posh super unleaded gasoline we can buy over here  |
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